Asp.net 2.0 用C# 创建 PDF文件[引用] (示例代码下载)

2022-07-15 80酷酷网 80kuku.com

　　asp.net|创建|示例|下载

(一). 功能
   创建PDF文件
(二). 代码
1using System;
2using System.Data;
3using System.Configuration;
4using System.Web;
5using System.Web.Security;
6using System.Web.UI;
7using System.Web.UI.WebControls;
8using System.Web.UI.WebControls.WebParts;
9using System.Web.UI.HtmlControls;
10using System.IO;
11using System.Text;
12using System.Collections;
13
14public partial class _Default : System.Web.UI.Page
15{
16    static float pageWidth = 594.0f;
17    static float pageDepth = 828.0f;
18    static float pageMargin = 30.0f;
19    static float fontSize = 10.0f;
20    static float leadSize = 10.0f;
21
22    //指定要生成PDF文件的路径
23    static StreamWriter pPDF = new StreamWriter("E:\\net\\WebSites\\Create_PDF_File\\test.pdf");//指定生成的路径
24
25    static MemoryStream mPDF = new MemoryStream();
26
27    //Convert the Text Data to PDF format and write back to
28    //Memory Stream
29    static void ConvertToByteAndAddtoStream(string strMsg)
30    {
31        Byte[] buffer = null;
32        buffer = ASCIIEncoding.ASCII.GetBytes(strMsg);
33        mPDF.Write(buffer, 0, buffer.Length);
34        buffer = null;
35    }
36
37    //Format the data length in xRef Format
38    static string xRefFormatting(long xValue)
39    {
40        string strMsg = xValue.ToString();
41        int iLen = strMsg.Length;
42        if (iLen < 10)
43        {
44            StringBuilder s = new StringBuilder();
45            int i = 10 - iLen;
46            s.Append('0', i);
47            strMsg = s.ToString() + strMsg;
48        }
49        return strMsg;
50    }
51    protected void Page_Load(object sender, EventArgs e)
52    {
53
54    }
55    protected void Button1_Click(object sender, EventArgs e)
56    {
57        //Create a ArrayList for xRefs of PDF Document
58        ArrayList xRefs = new ArrayList();
59        float yPos = 0f;
60        long streamStart = 0;
61        long streamEnd = 0;
62        long streamLen = 0;
63        string strPDFMessage = null;
64        //PDF Header Message
65        strPDFMessage = "%PDF-1.1\n";
66        ConvertToByteAndAddtoStream(strPDFMessage);
67
68        //ID 1 For Containt
69        //ID 2 For Length of the Stream
70        //write the Text
71
72        //1> Start a new Page
73        xRefs.Add(mPDF.Length);
74        strPDFMessage = "1 0 obj\n";
75        ConvertToByteAndAddtoStream(strPDFMessage);
76        strPDFMessage = "<< /Length 2 0 R >>\n";
77        ConvertToByteAndAddtoStream(strPDFMessage);
78        strPDFMessage = "stream\n";
79        ConvertToByteAndAddtoStream(strPDFMessage);
80
81        //Get the start of the stream
82        streamStart = mPDF.Length;
83        strPDFMessage = "BT\n/F0 " + fontSize + " Tf\n";
84        ConvertToByteAndAddtoStream(strPDFMessage);
85        yPos = pageDepth - pageMargin;
86        strPDFMessage = pageMargin + " " + yPos + " Td\n";
87        ConvertToByteAndAddtoStream(strPDFMessage);
88        strPDFMessage = leadSize + " TL\n";
89        ConvertToByteAndAddtoStream(strPDFMessage);
90
91        //Add the text data to the PDF memory stream
92        strPDFMessage = "(Do a test)Tj\n";
93        ConvertToByteAndAddtoStream(strPDFMessage);
94        strPDFMessage = "ET\n";
95        ConvertToByteAndAddtoStream(strPDFMessage);
96        //Get the End of the stream
97        streamEnd = mPDF.Length;
98        //Get the Length of the stream
99        streamLen = streamEnd - streamStart;
100        strPDFMessage = "endstream\nendobj\n";
101        ConvertToByteAndAddtoStream(strPDFMessage);
102
103        //Add 2 object to xRef
104        xRefs.Add(mPDF.Length);
105        strPDFMessage = "2 0 obj\n" + streamLen + "\nendobj\n";
106        ConvertToByteAndAddtoStream(strPDFMessage);
107
108        //Add Page to xRefs
109        xRefs.Add(mPDF.Length);
110        strPDFMessage = "3 0 obj\n<</Type/Page/Parent 4 0 R/Contents 1 0 R>>\nendobj\n";
111        ConvertToByteAndAddtoStream(strPDFMessage);
112
113        //Build the Pages
114        xRefs.Add(mPDF.Length);
115        strPDFMessage = "4 0 obj\n<</Type /Pages /Count 1\n";
116        ConvertToByteAndAddtoStream(strPDFMessage);
117        strPDFMessage = "/Kids[\n3 0 R\n]\n";
118        ConvertToByteAndAddtoStream(strPDFMessage);
119        strPDFMessage = "/Resources<</ProcSet[/PDF/Text]/Font<</F0 5 0 R>> >>\n";
120        ConvertToByteAndAddtoStream(strPDFMessage);
121        strPDFMessage = "/MediaBox [ 0 0 " + pageWidth + " " + pageDepth + " ]\n>>\nendobj\n";
122        ConvertToByteAndAddtoStream(strPDFMessage);
123
124        //Add font to xRefs
125        xRefs.Add(mPDF.Length);
126        strPDFMessage = "5 0 obj\n<</Type/Font/Subtype/Type1/BaseFont/Courier/Encoding/WinAnsiEncoding>>\nendobj\n";
127        ConvertToByteAndAddtoStream(strPDFMessage);
128
129        //Add the catalog to xRefs
130        xRefs.Add(mPDF.Length);
131        strPDFMessage = "6 0 obj\n<</Type/Catalog/Pages 4 0 R>>\nendobj\n";
132        ConvertToByteAndAddtoStream(strPDFMessage);
133
134        //xRefs Entry
135        streamStart = mPDF.Length;
136        strPDFMessage = "xref\n0 7\n0000000000 65535 f \n";
137        for (int i = 0; i < xRefs.Count; i++)
138        {
139            strPDFMessage += xRefFormatting((long)xRefs[i]) + " 00000 n \n";
140        }
141        ConvertToByteAndAddtoStream(strPDFMessage);
142        //Trailer for the PDF
143        strPDFMessage = "trailer\n<<\n/Size " + (xRefs.Count + 1) + "\n/Root 6 0 R\n>>\n";
144        ConvertToByteAndAddtoStream(strPDFMessage);
145        //xRef location entry
146        strPDFMessage = "startxref\n" + streamStart + "\n%%EOF\n";
147        ConvertToByteAndAddtoStream(strPDFMessage);
148        //Write the PDF from Memory Stream to File Stream
149        mPDF.WriteTo(pPDF.BaseStream);
150        //Close the Stream
151        mPDF.Close();
152        pPDF.Close();
153    }
154}
155
(三). 示例代码下载

http://www.cnblogs.com/Files/ChengKing/Create_PDF_File.rar